MCP Tasks (async)/ Why the heck aren't any agents supporting MCP tasks/async?

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Official Description

The November 2025 MCP spec release introduced tasks, a way to make tool calls in an async manner.

But more than 5 months later (an eternity in AI-time) there are still NO clients that support it -

not Claude, not Codex, not even goose! I believe there are two reasons: Designing the client

experience when there are potentially 1000s of background tasks running on their own schedule and

engaging humans at unpredictable times is a challenge. And tasks place new infrastructure

requirements on such a client. This talk will share the findings from having built against the tasks

protocol and will suggest solutions these problems. Yup, we'll have a working client!

Related YouTube Video

OpenAI + @Temporalio : Building Durable, Production Ready Agents - Cornelia Davis, Temporal (speaker-match related prior/adjacent AI Engineer video; captions: English auto-captions).

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Related video transcript availability: English auto-captions. Treat this as supporting context, not a recording of this exact scheduled session unless later confirmed. Not fetched yet.

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